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I think Roger must be thinking about some older digital tuners. The
Peterson Virtual strobes are real time with no delay. What they can't do
however is show any hint of harmonics and overtones. They only read the
fundamental.
Have you looked in to the Peterson Strobosoft program? I believe the full
version includes a spectrum analyzer and oscilliscope. I've never seen a
strobe tuner as having much use in tuning a soundboard. The whole idea
of strobe tuners is to view the motion of the disc pattern if the pitch
varies from correct. In the case of tapping a top or a banjo head, the tone
is so short lived that you could never really see if the pattern is stable or
in motion.
Seems like it may briefly appear and disappear at best.
For tuning anything with such rapid decay I find it hard to beat a tuning
fork or a string (or the pitch generator on the VSAM). If you wanted to
measure with more precision including overtones you should look in to
an audio spectrum analyzer program. Many of these allow you to record
peak frequencies, show real time or plot charts for things like decay.
_________________
Eschew obfuscation, espouse elucidation.
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